davis



2 Sheets-.-Sheet 1 I (No Model.)

I L. DAVIS. HOSPITAL FOR PATIENTS WITH INPEOTIOUS 0R GONTAGIOUSDISEASES.

No. 413,360. Patented 0011.22, 1889.

T I Z I A 7 H/T/K n witnesses: Ianventor ZZW 77% w WJ%% n. PETERS. 'mwumn hm. Washington, 0. c.

UNITED, STATES PATENT OFFICE.

MILES-L. nAvis, or LANCASTER, PENNSYLVANIA.

HOSPITAIl FOR PATIENTS WlTH INFECTIOUS OR CONTAGIOUS DISEASES.

SPECIFICATION. forming part of Letters Patent No. 413,360, dated October22, 1889. Application tiled September 21, 1888! fierial 110,285,972. (Nomodel.)

To all whom it may concern:

Be it known that I, MILES L. DAVIS, a cititients from contact, eitherdirectly or indirectly, with all persons excepting the physicians andnurses having charge of them; second, to keep the atmosphere of theseveral rooms in a pure and healthful condition; third, to remove alldisease-germs from the clothing of persons before they pass from thepatients apartment, and, fourth, to carry the excreta and impure air ofthe room out of the same and destroy the disease-germs contained thereinwithout permitting them to be bro ught into contact with the outer air.

My invention consists in providing each room with a ventilating chamberhaving spring doors communicating with the patients room and thecorridor of the ward, supplying each vestibule with air through a supply-flue, producing ventilation by a current of air drawn fromthevestiloule through an eduction-flue, and in means for disinfectingall vessels carried from the room.

My invention is fully illustrated in. the accompanying drawings, inwhich Figure 1 is a plan View of the ground floor of a hospital in whichmy invention is used. Fig. 2 isa vertical section onthe line y y of Fig.1, showing the arrangement of the disinfecting and ventilating .devices.Fig. 3 is a top View of one of the rooms, the ceiling being removed.Fig. i is a longitudinal section of one of the air-supply fines. Fig. 5is a frontview of adoor of one of the ventilatingcharnbers. Fig. 6 is aside elevation of the furnace.

A hospital in which my invention may be used most economically and tothegreatest advantage should be constructed with a main central buildingand wings H, radiating therefrom.

In Fi 1 I show the plan of abuilding hav ing four wings; but by wideningthe central building the number of these wings may be increased. Thewings form the Wards of the hospital, while the offices, physicians andnurses? rooms, kitchen, and dining and mess rooms G G G are located inthe central building; To permit more complete ventilation, the lowerfloor of the whole building is raised above the ground-sayabOut fourfeet-and that space provided with a series of,,,registers, which can beopened and closed in whole or in part, as may be desirable.

hach room F for the accommodation of patients is large enough to holdtwo patients, the floor, ceiling, and sides Wbeing made of boardstongued and grooved, as shown in Fig. 3, and all joints are providedwith air tight packing.

Air is admitted to each room through a flue C, placed near or just underthe ceiling, the outer end being protected by the eaves of the roof.This flue is divided into two sections by a perforated partition I',theouter section being filled with cotton or other similarloose material Q,saturated with some disinfect-ant, through which the air filters as itpasses into the room. The outer end of the flue is covered with aremovable cap 0 to give access to the interior thereof. The end of thiscap is also filled with perforations d, and is provided with a handle f.

, A register is placed in the floor of the room, which opens into a fluel3, connectedwith the main ventilating-flue A, extending lengthwise ofthe ward and supported under the joists of the corridor by straps a.Flue A extends to the center building and the discharge end is carrieddown and enters the side of the fire-box R of the furnace mibeneath thefiregrate.

Each room F has a ventilating and disinfecting vestibule E, throughwhich all persons pass-in entering or leaving it. The vestibule isprovided with two doors m, one opening into the corridor and the otherinto the room. Each door is provided with a spring 6, and the faces ofthe j ambs against which the doors rest are covered with a rubbercushion, that the joints about the doors may be rendered air tight. Inaddition to the springs 17, the two doors are connected by a spring h,fastened to the hanging stiles or near to them.

But one of these doors is to be opened at a time, and the opening of onedraws the other against the cushions of its jambs with increasedpressure, preventing the passage of any air-current through thevestibule. These vestibules are provided with an inlet air-flue I at D,which is constructed in the same manher as the flue C and admits airfrom the loft M, which is supplied through the Windows N. They are alsoconnected with the ventilatingfine A by'a flue L. The flue I is providedwith a cut-off or damper, which is only opened upon certain occasions,as will be described. As a person passes fro'mthe room of the patientinto the vestibule, the door between them is closed. He then opens thecut-off in the flue I, which produces a currentdownward through the flueL. In this way the air he has carried with him from the sick-room he hasjust left is carried from him down to the ventilating-flue A, and thenceto the fire-box. Before passing on into the corridor of the ward hecloses the cut-off.

Each room is provided with a metallic bucket K, which can be closedair-tight, and each vestibule with a vessel 9, filled with somedisinfecting-liquid. The bucket receives the excreta from the patient,and before bein g removed from the room is tightly closed. It is thencarried into the vestibule and immersed in the vessel 9. The bucketremains immersed long enough for its exterior to be thoroughlydisinfected, and during that time the attendant disinfects himself byopening the cut-off of the flue I. The bucket is then carried to thefurnace and emptied into the retort T through the chute V.

As the ventilatingflues A have their discharge ends located under thefire-grate, there 'from the fire-box through the tines 7', around theretort, which is heated to a White heat, and thence out through thestack P.

All kitchen-refuse and other Waste, as well as the excreta from therooms of the patients, is emptied into the retort, where it is consumed.

If desirable, there may be tWo or more stories to the building, thoseabove being reached by the open iron stairway S.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

1. The combination of a sick-room and a ventilating-vestibule connectingit with the exit therefrom, substantially as specified.

2. The combination of a sick-room,a vestibule connecting said room andthe exit therefrom, an air-supply flue, and an eduction-flue, by which acurrent of air is produced through the vestibule, substantially as andfor the purpose specified.

3. The combination, in a hospital, of an air-loft provided with windowsor openings N, vestibules located between the rooms of the wards and thecorridors, flues connecting the loft with said vestibules, and eduction-[iues leading therefrom, substantially as and for the purpose specified.

4. The combination, with a sick-room, of a ventilatingvestibule providedwith two doors, one communicating with the sick-room and the other withthe corridor, and a spring connecting said doors, substantially as andfor the purpose specified.

5. The combination, with a sick-room, of a ventilatingvestibuleconnecting the room with the exit therefrom, and adisinfectingreceptacle located in the vestibule, wherein disease-germsmay be removed from all vessels taken from the rooms, substantially asspecified.

6. The combination, With a sick-room, of a ventilating-vestibuleprovided with two doors, one communicating with the sick-room and theother with the corridor, a spring connecting said doors, an air-supplyflue and an eduction-flue, by which a current of air is produced throughthe vestibule, and a cut-off or damper connected with the air-supplyflue, all constructed and operating substantially as and for the purposespecified.

W'itnesses: v

GEo. A. LANE, WM. R. GERHART.

